diff --git a/Sources/OversizeCore/Extensions/Locale/Currency+Extension.swift b/Sources/OversizeCore/Extensions/Locale/Currency+Extension.swift
index 16ca6fd..e06f2f1 100644
--- a/Sources/OversizeCore/Extensions/Locale/Currency+Extension.swift
+++ b/Sources/OversizeCore/Extensions/Locale/Currency+Extension.swift
@@ -1,29 +1,50 @@
 //
 // Copyright © 2023 Alexander Romanov
-// CurrencyExtension.swift, created on 15.07.2023
+// Currency+Extension.swift, created on 15.07.2023
 //
 
 import Foundation
 
 @available(macOS 13, iOS 16, tvOS 16, watchOS 9, *)
 public extension Locale.Currency {
-    var dispalyName: String? {
+    var displayName: String? {
         Locale.current.localizedString(forCurrencyCode: identifier)
     }
 
-    var dispalyIdentifier: String? {
+    var displayIdentifier: String? {
         identifier.uppercased()
     }
 
-    var dispalyLocalizedSymbol: String? {
+    var displayLocalizedSymbol: String? {
         Locale.current.localizedCurrencySymbol(forCurrencyCode: identifier)
     }
 
-    var dispalySymbol: String? {
+    var displaySymbol: String? {
         let allLocalCurrencies = Locale.availableIdentifiers.compactMap { Locale(identifier: $0) }
         return allLocalCurrencies.first { $0.currency == self }?.currencySymbol
     }
 
+    // MARK: - Deprecated aliases for backward compatibility
+    @available(*, deprecated, renamed: "displayName", message: "Use displayName instead")
+    var dispalyName: String? {
+        displayName
+    }
+
+    @available(*, deprecated, renamed: "displayIdentifier", message: "Use displayIdentifier instead")
+    var dispalyIdentifier: String? {
+        displayIdentifier
+    }
+
+    @available(*, deprecated, renamed: "displayLocalizedSymbol", message: "Use displayLocalizedSymbol instead")
+    var dispalyLocalizedSymbol: String? {
+        displayLocalizedSymbol
+    }
+
+    @available(*, deprecated, renamed: "displaySymbol", message: "Use displaySymbol instead")
+    var dispalySymbol: String? {
+        displaySymbol
+    }
+
     var locale: Locale? {
         let allLocalCurrencies = Locale.availableIdentifiers.compactMap { Locale(identifier: $0) }
         return allLocalCurrencies.first { $0.currency == self }
@@ -33,6 +54,6 @@ public extension Locale.Currency {
         Locale.availableIdentifiers
             .compactMap { Locale(identifier: $0).currency }
             .removeDuplicates()
-            .sorted { $0.dispalyName ?? "" < $1.dispalyName ?? "" }
+            .sorted { $0.displayName ?? "" < $1.displayName ?? "" }
     }
 }
diff --git a/Sources/OversizeCore/Extensions/Locale/Locale+Extension.swift b/Sources/OversizeCore/Extensions/Locale/Locale+Extension.swift
index 9f10645..44766f8 100644
--- a/Sources/OversizeCore/Extensions/Locale/Locale+Extension.swift
+++ b/Sources/OversizeCore/Extensions/Locale/Locale+Extension.swift
@@ -1,6 +1,6 @@
 //
 // Copyright © 2023 Alexander Romanov
-// LocaleExtension.swift, created on 15.07.2023
+// Locale+Extension.swift, created on 15.07.2023
 //
 
 import Foundation
diff --git a/Sources/OversizeCore/Extensions/Swift/Date+Extension.swift b/Sources/OversizeCore/Extensions/Swift/Date+Extension.swift
index 858800c..6b222cf 100644
--- a/Sources/OversizeCore/Extensions/Swift/Date+Extension.swift
+++ b/Sources/OversizeCore/Extensions/Swift/Date+Extension.swift
@@ -66,7 +66,7 @@ public extension Date {
         Calendar.current.date(byAdding: .day, value: -30, to: self)!
     }
 
-    var halfYarBefore: Date {
+    var halfYearBefore: Date {
         Calendar.current.date(byAdding: .month, value: -6, to: self)!
     }
 
diff --git a/Sources/OversizeCore/Extensions/Swift/String+Extension.swift b/Sources/OversizeCore/Extensions/Swift/String+Extension.swift
index 9021e92..e3259b7 100644
--- a/Sources/OversizeCore/Extensions/Swift/String+Extension.swift
+++ b/Sources/OversizeCore/Extensions/Swift/String+Extension.swift
@@ -34,7 +34,7 @@ public extension String {
     var urlEncode: String {
         let originalString = self
         let escapedString = originalString.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)
-        return escapedString!
+        return escapedString ?? originalString
     }
 
     var url: URL? {
@@ -83,7 +83,7 @@ public extension String {
     }
 
     var data: Data {
-        self.data(using: String.Encoding.utf8)!
+        self.data(using: String.Encoding.utf8) ?? Data()
     }
 
     var range: NSRange {
@@ -114,7 +114,9 @@ public extension String {
             return matches.map {
                 var array: [String] = []
                 for rangeIndex in 0 ... max(0, $0.numberOfRanges - 1) {
-                    array.append(String(self[Range($0.range(at: rangeIndex), in: self)!]))
+                    if let range = Range($0.range(at: rangeIndex), in: self) {
+                        array.append(String(self[range]))
+                    }
                 }
                 return array
             }
diff --git a/Sources/OversizeCore/Global/Delay.swift b/Sources/OversizeCore/Global/Delay.swift
index b16e09b..7a3ffd7 100644
--- a/Sources/OversizeCore/Global/Delay.swift
+++ b/Sources/OversizeCore/Global/Delay.swift
@@ -14,7 +14,9 @@ public func delay(_ time: ContinuousClock.Duration, action: @Sendable @escaping
     do {
         try await Task.sleep(for: time)
         await action()
-    } catch {}
+    } catch {
+        logError("Delay function failed", error: error)
+    }
 }
 
 @available(iOS 16.0, tvOS 16.0, watchOS 9.0, macOS 13.0, *)
@@ -22,13 +24,19 @@ public func delayMain(_ time: ContinuousClock.Duration, action: @MainActor @Send
     do {
         try await Task.sleep(for: time)
         await action()
-    } catch {}
+    } catch {
+        logError("DelayMain function failed", error: error)
+    }
 }
 
 @available(iOS 16.0, tvOS 16.0, watchOS 9.0, macOS 13.0, *)
 public func delayDetached(_ time: ContinuousClock.Duration, action: @Sendable @escaping () -> Void) {
     Task.detached {
-        try await Task.sleep(for: time)
-        action()
+        do {
+            try await Task.sleep(for: time)
+            action()
+        } catch {
+            logError("DelayDetached function failed", error: error)
+        }
     }
 }